What does the term "fatal" imply?

The term "fatal" specifically implies that something results in death. In a medical context, for instance, a fatal illness or injury is one that is likely to end a person's life. Understanding this term is crucial, as it helps convey the severity of medical conditions or situations.

The other options pertain to different meanings: "leading to recovery" suggests a positive outcome, "causing temporary ailment" implies a condition that is likely to resolve, and "ensuring safety" refers to protective measures. None of these definitions align with the implication of death that "fatal" conveys, making it clear that the correct interpretation of the term is that it indicates a lethal outcome.